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Metasurface‐based low‐profile high‐gain substrate‐integrated Fabry‐Pérot cavity antenna
Author(s) -
Liu Zhiming,
Liu Shaobin,
Bian Borui,
Kong Xiangkun,
Zhang Haifeng
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21583
Subject(s) - materials science , antenna (radio) , reflector (photography) , substrate (aquarium) , optoelectronics , planar , antenna gain , fabry–pérot interferometer , conductor , patch antenna , radiation pattern , microstrip antenna , antenna measurement , antenna factor , optics , wavelength , physics , computer science , engineering , electrical engineering , composite material , light source , oceanography , computer graphics (images) , geology
A metasurface‐based substrate integrated Fabry‐Pérot cavity (FPC) antenna is presented for improved radiation performance associated with the low profile. A novel partially reflective planar (PRS) artificial magnetic conductor (AMC) structure is proposed as the upper reflector of the substrate integrated FP resonant cavity. A microstrip patch antenna is embedded inside the cavity as a feed. The proposed antenna is designed to operate at 9.35 GHz with the maximum realized gain of 14.2 dBi and the overall profile of λ 0 /10 ( λ 0 is the operating wavelength in free space). The low‐profile performance of the proposed design outperforms any previous substrate‐integrated FPC antenna design with this gain performance. The influences of the FP cavity on the reduction of the antenna profile and the enhancement of the antenna gain are also investigated. Good agreement between the measured and simulated results validates the feasibility of the analysis and design approach.